ZION NP, UTAH

Period of Record General Climate Summary - Heating Degree Days

Station:(429717) ZION NATIONAL PARK
From Year=1904 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	772	569	449	236	76	6	1	2	9	126	457	736	3440
60	617	429	303	134	33	1	1	1	3	63	316	582	2482
57	524	347	225	89	18	0	1	0	1	39	240	489	1973
55	463	294	180	65	11	0	1	0	1	26	195	428	1664
50	314	177	89	26	3	0	0	0	0	9	104	283	1007

Heating Degree Day units are computed as the difference between the base temperature and the daily average temperature. (Base Temp. - Daily Ave. Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is below the base temperature. Negative numbers are discarded. Example: If the days high temperature was 65 and the low temperature was 31, the base 50 heating degree day units is 50 - ((65 + 31) / 2) = 2. This is done for each day of the month and summed.
Table updated on Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu